Sourced from parking_lot's changelog.

parking_lot 0.11.1, lock_api 0.4.2 (2020-11-18)

• Fix bounds on Send and Sync impls for lock guards. (#262)
• Fix incorrect memory ordering in RwLock. (#260)

lock_api 0.4.1 (2020-07-06)

• Add data_ptr method to lock types to allow unsafely accessing the inner data without a guard. (#247)

parking_lot 0.11.0, parking_lot_core 0.8.0, lock_api 0.4.0 (2020-06-23)

• Add is_locked method to mutex types. (#235)
• Make RawReentrantMutex public. (#233)
• Allow lock guard to be sent to another thread with the send_guard feature. (#240)
• Use Instant type from the instant crate on wasm32-unknown-unknown. (#231)
• Remove deprecated and unsound MappedRwLockWriteGuard::downgrade. (#244)
• Most methods on the Raw* traits have been made unsafe since they assume the current thread holds the lock. (#243)

parking_lot_core 0.7.2 (2020-04-21)

• Add support for wasm32-unknown-unknown under the "nightly" feature. (#226)

parking_lot 0.10.2 (2020-04-10)

• Update minimum version of lock_api.

parking_lot 0.10.1, parking_lot_core 0.7.1, lock_api 0.3.4 (2020-04-10)

• Add methods to construct Mutex, RwLock, etc in a const context. (#217)
• Add FairMutex which always uses fair unlocking. (#204)
• Fixed panic with deadlock detection on macOS. (#203)
• Fixed incorrect synchronization in create_hashtable. (#210)
• Use llvm_asm! instead of the deprecated asm!. (#223)

lock_api 0.3.3 (2020-01-04)

• Deprecate unsound MappedRwLockWriteGuard::downgrade (#198)

parking_lot 0.10.0, parking_lot_core 0.7.0, lock_api 0.3.2 (2019-11-25)

• Upgrade smallvec dependency to 1.0 in parking_lot_core.
• Replace all usage of mem::uninitialized with mem::MaybeUninit.
• The minimum required Rust version is bumped to 1.36. Because of the above two changes.
• Make methods on WaitTimeoutResult and OnceState take self by value instead of reference.

parking_lot_core 0.6.2 (2019-07-22)

• Fixed compile error on Windows with old cfg_if version. (#164)

... (truncated)

• 86969fd Release parking_lot 0.11.1 and lock_api 0.4.2
• 7de94f9 Merge pull request #262 from Amanieu/guard_sync
• c8dfa97 Merge pull request #260 from Amanieu/rwlock_ordering
• 4c00d62 Fix bounds on Send and Sync impls for lock guards
• ded782f RawRwLock::wait_for_readers needs an Acquire to synchronize with unlock_shared
• ecfe20b Merge pull request #256 from nico-abram/srw
• 143710f Add winapi srwlock to benchmarks
• ab3718f Merge pull request #253 from mbrubeck/deps
• bb0bfb3 Update to cfg-if 1.0
• 5ac2971 Merge pull request #252 from fusion-engineering-forks/miri-issues
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